'use strict'
const path = require('path')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const CompressionPlugin = require('compression-webpack-plugin')
const name = process.env.VUE_APP_TITLE || '灵次元官网'
const port = process.env.port || process.env.npm_config_port || 80

module.exports = {
  publicPath: process.env.NODE_ENV === 'production' ? '/' : '/',
  outputDir: 'dist',
  assetsDir: 'static',
  productionSourceMap: false,
  transpileDependencies: ['quill'],

  devServer: {
    host: '0.0.0.0',
    port: port,
    open: true,
    // proxy 已删除！直接调后端 HTTPS
    disableHostCheck: true,
  },

  css: {
    loaderOptions: {
      sass: { sassOptions: { outputStyle: 'expanded' } },
      less: { javascriptEnabled: true },
    },
  },

  configureWebpack: {
    name: name,
    resolve: {
      alias: { '@': resolve('src') },
    },
    plugins: [
      new CompressionPlugin({
        cache: false,
        test: /\.(js|css|html|jpe?g|png|gif|svg)?$/i,
        filename: '[path][base].gz[query]',
        algorithm: 'gzip',
        minRatio: 0.8,
        deleteOriginalAssets: false,
      }),
    ],
  },

  chainWebpack(config) {
    config.plugins.delete('preload')
    config.plugins.delete('prefetch')

    config.module.rule('svg').exclude.add(resolve('src/assets/icons')).end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/assets/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({ symbolId: 'icon-[name]' })
      .end()

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [{ inline: /runtime\..*\.js$/ }])
        .end()

      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial',
          },
          elementUI: {
            name: 'chunk-elementUI',
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/,
            priority: 20,
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'),
            minChunks: 3,
            priority: 5,
            reuseExistingChunk: true,
          },
        },
      })
      config.optimization.runtimeChunk('single')
    })
  },
}
